What could be the cause of excessivly high idle speed between 1500 & 2000 rpm's engine is a 3.8 liter.
May 8, 2010 at 9:59 PM
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JACOBANDNICKOLAS
✓ASE Certified Mechanic
110,194 POSTS
A vacuum leak, throttle position sensor, idle air control valve... can cause it. Has the check engine light come on?
May 14, 2010 at 10:15 AM
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